EP0294676B1 - Vorrichtung zum Befestigen einer Visierscheibe an einem Schutzhelm - Google Patents

Vorrichtung zum Befestigen einer Visierscheibe an einem Schutzhelm Download PDF

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Publication number
EP0294676B1
EP0294676B1 EP88108623A EP88108623A EP0294676B1 EP 0294676 B1 EP0294676 B1 EP 0294676B1 EP 88108623 A EP88108623 A EP 88108623A EP 88108623 A EP88108623 A EP 88108623A EP 0294676 B1 EP0294676 B1 EP 0294676B1
Authority
EP
European Patent Office
Prior art keywords
shield
engaging
mounting assembly
assembly according
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88108623A
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English (en)
French (fr)
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EP0294676A1 (de
Inventor
Michio Arai
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0294676A1 publication Critical patent/EP0294676A1/de
Application granted granted Critical
Publication of EP0294676B1 publication Critical patent/EP0294676B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H1/00—Personal protection gear
    • F41H1/04—Protection helmets
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/18—Face protection devices
    • A42B3/22—Visors
    • A42B3/221—Attaching visors to helmet shells, e.g. on motorcycle helmets
    • A42B3/222—Attaching visors to helmet shells, e.g. on motorcycle helmets in an articulated manner, e.g. hinge devices
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings

Definitions

  • the present invention relates to an assembly for mounting a shield on a safety helmet having a full-face type or jet type configuration which is used when riding a motorcycle or driving an automobile.
  • the shield and an opening adjustment means for the shield are generally mounted by set screws to the helmet body. More specifically, left and right sides of the shield and parts of the opening adjustment means, such as a ratchet mechanism. are fixedly mounted to the helmet body through a mounting cover.
  • a shield is pivotally supported on a safety helmet by means of base plates on the helmet and keep covers are placed on the base plates to cover the ends of the shield.
  • the keep covers are removable in any position of the shield and therefore the shield can become detached undesirably when in use.
  • the keep corners are secured directly to the helmet and the shield is pivotally mounted on the keep covers. Therefore if the keep covers are removed, and they can be in any position of the helmet, the shield becomes detached.
  • a shield mounting assembly for a safety helmet of the type having a helmet body and a front opening said assembly comprising:
  • FIG. 1 An embodiment of a mounting construction for a shield of a safety helmet according to the present invention will now be described with reference to the drawings, in which there is shown a helmet body 1, a shield 2, an engaging base plate 3 secured to left and right outer surfaces of helmet body 1, and a shield keep cover 4.
  • Helmet body 1 is shown with a full-face type configuration, which is generally known. However, helmet body 1 can have a jet type configuration.
  • Engaging base plates 3 are provided to support shield 2 and are fixed by set screws 5 to the left and right outer sides of helmet body 1. Each engaging base plate 3 is integrally provided with a rotation axle 6 about which shield 2 is rotated, a resilient engaging piece 7 for limiting rotation of shield 2 and a groove 8 into which the lower peripheral edge of shield 2 fits, resilient engaging piece 7 being disposed below rotation axle 6, and groove 8 disposed further below thereof.
  • Each engaging base plate 3 can be molded of either synthetic resin or a metal. In the case where engaging base plates 3 are formed of synthetic resin, a moderating means for limiting rotation of shield 2 can additionally be integrally formed therewith.
  • Rotation axle 6 includes a projecting piece 6' formed opposite to the upper cut-off straight line surface of rotation axle 6.
  • the projected height of rotation axle 6 is about twice that of the plate thickness of shield 2, such that projecting piece 6' which projects from the outer peripheral surface of rotation axle 6 extends to a position above the plate thickness of shield 2, as best shown in Fig. 8.
  • Rotation axle 6 is formed at its central portion with a through hole into which a set screw 5 is inserted, and a recess 9 (Fig. 8) which receives the head of set screw 5 is formed at the upper side of the through hole. Further, rotation axle 6 is formed on the side of the upper straight line surface with an engaging recess 10, which receives an engaging projecting portion 18 of shield keep cover 4.
  • Resilient engaging piece 7 is formed into an approximately C-shape by cutting off a part of a circular ring. A part of the outer peripheral surface of resilient engaging piece 7 is connected to base plate 3, and a pawl portion 7' is integrally formed at opposite ends of resilient engaging piece 7 and is directed radially outwardly.
  • Groove 8 is positioned at the lower end of base plate 3 and has a width capable of receiving the plate thickness of shield 2. Specifically, the upper and both left and right sides of grooves 8 are open, such that the lower peripheral edge of shield 2 is inserted in groove 8 from the top thereof and guided in a lateral direction, as shown in Figs. 3-5.
  • An extension 11 formed with a through hole for receiving a set screw 5 is integrally formed at the lower part of each engaging base plate 3, and an engaging hole 12 is formed in a rear, external end portion of extension 11.
  • Shield 2 opens and closes a front opening or window hole 13 formed in the front surface of helmet body 1 and is formed from a transparent, translucent or coloured transparent synthetic resin plate which is adjusted to the curved shape of helmet body 1.
  • Shield 2 is formed at both left and right sides thereof with a mounting hole 14 through which rotation axle 6 and projecting piece 6' fit, and an arcuate guide hole 15 which receives resilient engaging piece 7 to determine the range of rotation of shield 2.
  • Mounting hole 14 is continuously formed with a circular hole 14a slightly larger than the outer diameter of axle 6 and a notch 14b at the lower hole edge of hole 14a which receives projecting piece 6'.
  • Hole 14a is also continuously formed at the upper peripheral edge thereof with a notch 14c which receives engaging projecting portion 18 formed on shield keep cover 4 when shield 2 is moved to its upper limit position.
  • Arcuate guide hole 15 determines the range of rotation of shield 2 and is formed arcuately in surrounding relation about mounting hole 14.
  • Guide hole 15 is formed with a fitting portion 16 at one end thereof, fitting portion 16 engaged with pawl 7' of resilient engaging piece 7 when shield 2 is closed.
  • the width of arcuate guide hole 15 is slightly narrower than the outside diameter of resilient piece 7 when no external force is exerted.
  • a depression 17 is formed halfway along guide hole 15.
  • shield 2 when shield 2 is rotated so that depression 17 in guide hole 15 assumes the position of resilient engaging piece 7, the inwardly compressed resilient engaging piece 7 expands into its no-load shape and fits into depression 17. Therefore, shield 2 is engaged and held at a predetermined open position. Thus, shield 2 can be opened and closed in a stepwise manner.
  • Shield keep cover 4 for covering the support portion of shield 2 is formed of a synthetic resin material, and engaging projecting portion 18 is integrally formed at the upper part of the inner surface thereof in opposing relation to shield 2.
  • a stopper 19 is mounted at the lower part of the inner surface so that it may be operated from the outside.
  • Engaging projecting portion 18 fits into and engages with engaging recess 10 formed in the upper side of rotation axle 6 of engaging base plate 3, engaging projecting portion 18 fitting into and disengaging from engaging recess 10 through notch 14c formed in the upper peripheral edge of mounting hole 14a when rotation axle 6 registers with mounting hole 14a of shield 2, that is, in the fully open limit position of shield 2.
  • Stopper 19 is in the form of a rectangular flat plate and the inside surface at the rear end 19a thereof which fits into and disengages from engaging hole 12 is formed with an inclined surface, as shown in Fig. 6. At the opposite front side thereof, stopper 19 is projectingly formed with a spring-action piece 20 in the form of an arrow for biasing stopper 19 in a direction of being fit into engaging hole at all times.
  • the thus formed stopper 19 fits into a guide piece 21 formed in the back of shield keep cover 4, and spring-action piece 20 thereof fits into a guide piece 22 that narrows toward the rear of shield keep cover 4.
  • Spring-action piece 20 is moved in the direction of the narrowing width of guide piece 22, whereby spring-action piece 20 is inwardly pressed to store a bias force. When the rearwardly moving force is released, stopper 19 is thereby moved by such stored bias force in the opposite direction so as to automatically engaged and fit into engaging hole 12.
  • a projection 19' formed on the outer surface of stopper 19 fronts into a guide hole 29 formed in shield keep cover 4 and is supported slidable left and right therein, as viewed in Fig. 6.
  • An operating plate 23 is joined to projection 19' from the outside of cover 4 and fixed by a set screw 29 so that removal of stopper 19 may me accomplished from the outside.
  • a lock mechanism 24 is mounted on shield keep cover 4 for maintaining shield 2 in a closed position.
  • Lock mechanism 24 is composed of a lock cam 26 which rotates integral with an operating lever 25 on shield keep cover 4, and an engaging portion 30 of shield 2 which can be engaged with and disengaged from lock cam 26, as shown in Figs. 3-5 and 7.
  • Shield keep cover 4 is connected to engaging base plate 3 which is secured to helmet body 1, by a flexible connecting string 27 (Fig. 9), for example, a plastic string, to prevent shield keep cover 4 from being completely separated when shield keep cover 4 is disassembled.
  • a flexible connecting string 27 for example, a plastic string
  • the mounting position of engaging base plate 3 relative to helmet body 1 can be on the curved side surface of helmet body 1, as shown, although an offset portion 28 (Figs. 1 and 9) much lower than such shown curved side surface can be used. In such case, if engaging base plate 3 is secured to offset portion 28 and shield keep cover 4 is engaged therewith so that the outer surface of shield keep cover 4 and the outer surface of helmet body 1 approximately face each other, it is possible to minimize the amount of projection of the outer surface of the helmet.
  • shield 2 First, the left and right sides of shield 2 are engaged with and supported on engaging base plates 3 secured to helmet body 1, such support thereof being set by fitting the lower peripheral edge of shield 2 into groove 8 and fitting and registering the mounting hole 14 and circular guide hole 15 onto axle 6 and resilient engaging piece 7, respectively. In such case, shield 2 is in its upper open limit position.
  • shield keep cover 4 is fitted into and engaged with engaging recess 10 on the upper side of axle 6 through notch 14c formed in the edge of mounting hole 14 of shield 2.
  • Stopper 19 provided at the underside of shield keep cover 4 is biased and fits into engaging hole 12 formed at the lower part of engaging base plate 3 by means of operating member 23 so that shield keep cover 4 and engaging base plate 3 are integrally engaged and held with each other, thus completing the mounting of shield 2.
  • shield 2 is closed for use.
  • shield 2 is rotated upwardly so that mounting hole 14 is placed in registration with axle 6, and in that state, stopper 19 provided on shield keep cover 4 is pulled out of engaging hole 12, and shield keep cover 4 is raised upwardly so as to be pulled out of helmet body 1.
  • Engaging projecting portion 18 is then removed from engaging recess 10 through notch 14c whereby shield keep cover 4 may be removed. Thereafter, shield 2 can be disengaged from engaging base plate 3.
  • shield 2 may be mounted for limited rotation by engagement between engaging base plates 3 secured to the sides of helmet 1 and shield keep covers 4, without the use of set screws. Further, since such support is accomplished by engaging base plates 3 secured to the sides of helmet 1 and shield keep covers 4 which can be engaged and disengaged therefrom, even if shield keep covers 4 are removed from engaging base plates 3 to remove shield 2, such supporting members do not completely separate from each other, that is, do not fly apart in pieces, so that shield 2 may be engaged and disengaged safely. Moreover, since the mounting and removal of shield 2 and shield keep covers 4 can be effected only when shield 2 is rotated to its upper limit position, shield keep covers 4 and shield 2 are opposed to each other when shield 2 is fully closed, to prevent disengagement thereof. Therefore, there is no possible disengagement of shield 2 in such position.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Helmets And Other Head Coverings (AREA)

Claims (12)

  1. Vorrichtung zum Befestigen einer Visierscheibe an einem Schutzhelm, welcher einen Helmkörper (1) und eine Frontöffnung (13) aufweist, mit:
    (a) Grundplatten (3), welche an linken und rechten Außenflächen des Helmkörpers (1) befestigt sind, wobei jede Grundplatte (3) ein Achslager (6) aufweist:
    (b) einer Visierscheibe (2), an deren Enden Befestigungslöcher (14) vorhanden sind, in welche die Achslager (6) eingepaßt sind, auf denen die Visierscheibe (2) zwischen einer Offen- und einer Schließstellung begrenzt schwenkbar ist, und
    (c) Scheibenhalterungsdeckeln (4), welche mit daran angebrachten, vorspringenden Rasten (18) mit den Grundplatten (3) der Art verbunden sind, daß sie die Scheibenenden abdecken und dabei die begrenzte Schwenkbewegung der Visierscheibe (2) auf den Achslagern (6) gestatten, dadurch gekennzeichnet, daß jedes Befestigungsloch (14) eine Rastkerbe (14C) und jedes Achslager (6) eine Rastausnehmung (10) zur Aufnahme einer Raste (18) aufweist, welche aus der Rastausnehmung (10) nur ausgerastet werden kann, wenn sich die Visierscheibe (2) in einer vorbestimmten Stellung befindet, in welcher die Rastkerbe (14C) und die Rastausnehmung (10) miteinander fluchten.
  2. Befestigungsvorrichtung nach Anspruch 1, gekennzeichnet durch einen elastischen Mitnehmer (7) auf wenigstens einer der linken und rechten Grundplatten (3), und durch wenigstens eine, in der Visierscheibe (2) ausgebildete, bogenförmige Führungsöffnung (15) zur Aufnahme des oder jedes elastischen Mitnehmers (7), um die Drehbewegung der Visierscheibe (2) über den vorbestimmten Bewegungsbereich zu begrenzen.
  3. Befestigungsvorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der oder jeder elastische Mitnehmer (7) im wesentlichen C-förmig ausgebildet ist, und daß die oder jede bogenförmige Führungsöffnung (15) unterschiedliche Weiten aufweist, um den oder jeden elastischen Mitnehmer (7) und damit die Visierscheibe (2) in einer aus einer Vielzahl unterschiedlicher Winkelstellungen ausgewählten Stellung zu halten.
  4. Befestigungsvorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß der oder jeder elastische Mitnehmer (7) einen Sperrklinkenbereich (7') aufweist und daß die oder jede bogenförmige Führungsöffnung (15) ein Formstück (16) zur Aufnahme des Sperrklinkenbereiches (7') nach Art einer lösbaren Verriegelung aufweist, um die Visierscheibe (2) in einer Schließstellung lösbar zu verriegeln.
  5. Befestigungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß wenigstens eine der linken und rechten Grundplatten (3) eine Nut (8) zur gleitbaren Aufnahme einer unteren Umfangskante der Visierscheibe (2) im Sinne einer Führung der Visierscheibe (2) während deren Drehbewegung aufweist.
  6. Befestigungsvorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß jede Nut (8) an einem oberen und seitlichen Abschnitt offen ist, um eine Gleitbewegung der unteren Umfangskante der Visierscheibe (2) in der Nut (8) zu ermöglichen.
  7. Befestigungsvorrihtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß wenigstens eine der rechten und linken Grundplatten (3) eine in ihrem unteren Abschnitt ausgebildete Rastöffnung (12) aufweist, und daß wenigstens ein Scheibenhalterungsdeckel (4) eine Sperre (19) aufweist, welche von außerhalb des betreffenden Scheibenhalterungsdeckels (4) betätigbar und zwischen einer in die Rastöffnung (12) einer zugeordneten Grundplatte (3) eingerückten sowie einer aus der Rastöffnung (12) ausgerückten Stellung bewegbar ist.
  8. Befestigungsvorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß jede Sperre (19) einen in die Rastöffnung (12) einer zugeordneten Grundplatte (3) hineinbewegbaren Zungenabschnitt sowie einen damit verbundenen Spannabschnitt (20) aufweist, um den Zungenabschnitt in der Rastöffnung (12) vorzuspannen.
  9. Befestigungsvorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß der Zungenabschnitt die Form einer rechteckigen flachen Platte aufweist.
  10. Befestigungsvorrichtung nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß jeder zugeordnete Scheibenhalterungsdeckel (4) zur Gleitführung des Zungenenabschnitts ein Führungsstück (21) und zur Aufnahme sowie zur Vorspannung des Spannabschnitts (20) einen Federantrieb (22) aufweist, um den Zungenabschnitt in die Rastöffnung (12) zu bewegen.
  11. Befestigungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß wenigstens einer der Scheibenhalterungsdeckel (4) einen Riegel (24) zum Halten der Visierscheibe (2) in einer Schließstellung aufweist.
  12. Befestigungsvorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß der Riegel (24) eine Sperrnocke (26) aufweist, welche zwischen einer ersten Entriegelungsstellung und einer zweiten Verriegelungsstellung in Eingriff mit einem Verrastungsabschnitt der Visierscheibe (2) drehbar ist, und daß der Riegel (24) ferner einen Betätigungshebel (26) aufweist, um die Sperrnocke (26) zwischen der Entriegelungs- und Verriegelungsstellung zu bewegen.
EP88108623A 1987-06-09 1988-05-30 Vorrichtung zum Befestigen einer Visierscheibe an einem Schutzhelm Expired - Lifetime EP0294676B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62144450A JPS63309612A (ja) 1987-06-09 1987-06-09 ヘルメットにおけるシ−ルドの取付構造
JP144450/87 1987-06-09

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP90120468.5 Division-Into 1990-10-25

Publications (2)

Publication Number Publication Date
EP0294676A1 EP0294676A1 (de) 1988-12-14
EP0294676B1 true EP0294676B1 (de) 1991-09-18

Family

ID=15362519

Family Applications (2)

Application Number Title Priority Date Filing Date
EP90120468A Expired - Lifetime EP0420300B1 (de) 1987-06-09 1988-05-30 Vorrichtung zum Befestigen einer Visierscheibe an einem Schutzhelm
EP88108623A Expired - Lifetime EP0294676B1 (de) 1987-06-09 1988-05-30 Vorrichtung zum Befestigen einer Visierscheibe an einem Schutzhelm

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP90120468A Expired - Lifetime EP0420300B1 (de) 1987-06-09 1988-05-30 Vorrichtung zum Befestigen einer Visierscheibe an einem Schutzhelm

Country Status (5)

Country Link
US (1) US4907299A (de)
EP (2) EP0420300B1 (de)
JP (1) JPS63309612A (de)
KR (1) KR920004855B1 (de)
DE (2) DE3864912D1 (de)

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US5005221A (en) * 1989-08-28 1991-04-09 Chen Lee S Motorcycle helmet wind visor adjustment device
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US5095551A (en) * 1990-06-18 1992-03-17 Chin Chen L S Motorcycle helmet angle-adjustable wind visor mounting structure
JPH0635682B2 (ja) * 1990-08-15 1994-05-11 昭栄化工株式会社 ヘルメットのシールド板取付構造
JPH04100910A (ja) * 1990-08-20 1992-04-02 Shoei Kako Kk ヘルメットにおけるシールド板取付構造
JPH0448220U (de) * 1990-08-31 1992-04-23
JPH04126812A (ja) * 1990-09-12 1992-04-27 Dainippon Ink & Chem Inc 乗車用ヘルメット
JPH0735601B2 (ja) * 1990-11-30 1995-04-19 昭栄化工株式会社 ヘルメットにおけるシールド板取付構造
JPH0621370B2 (ja) * 1991-05-31 1994-03-23 昭栄化工株式会社 ヘルメットにおけるシールド板取付構造
GB9509041D0 (en) * 1995-05-04 1995-06-28 Barry Nicola Crash helmet with detachable visor
JP3559844B2 (ja) * 1996-09-02 2004-09-02 ヤマハ発動機株式会社 ヘルメットのシールド取付構造
JP3891623B2 (ja) * 1996-12-17 2007-03-14 株式会社Ｓｈｏｅｉ ヘルメットのシールド板取付け機構
JP4656756B2 (ja) * 2001-05-18 2011-03-23 株式会社Ｓｈｏｅｉ ヘルメットのシールド板制御装置
CA2520480C (en) * 2003-03-28 2013-12-24 Med-Eng Systems Inc. Head protector
ITMI20030411U1 (it) * 2003-09-12 2005-03-13 Opticos Srl Sistema di visiere anti-condensa
ITMI20060663A1 (it) * 2006-04-04 2007-10-05 Omega S R L Dispositivo per l'aggancio e lo sgancio di una visiera da un casco
US8161576B2 (en) * 2007-02-01 2012-04-24 Sellstrom Manufacturing Company Protective headgear assembly
US20100031410A1 (en) * 2008-08-08 2010-02-11 Linda Clark Multi-Positionable Face Shield
CA2846143A1 (en) * 2013-03-13 2014-09-13 Evan J. Falck Helmet pillow
US9578916B2 (en) 2014-02-11 2017-02-28 3M Innovative Properties Company Appliance mounting device and system for head gear
PT3298918T (pt) * 2015-05-19 2022-02-11 Maura­Cio Paranhos Torres Melhorias na célula de proteção do crânio
EP3595470A4 (de) * 2017-03-13 2020-12-16 Gentex Corporation Modulare abdeckung
CN113170940B (zh) * 2021-04-27 2022-04-22 广州市晋颢体育用品有限公司 一种防护罩底座及其安全头盔

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Also Published As

Publication number Publication date
EP0420300A2 (de) 1991-04-03
EP0420300A3 (en) 1991-07-24
DE3887171D1 (de) 1994-02-24
EP0294676A1 (de) 1988-12-14
EP0420300B1 (de) 1994-01-12
US4907299A (en) 1990-03-13
KR920004855B1 (ko) 1992-06-19
KR890000871A (ko) 1989-03-17
DE3887171T2 (de) 1994-04-28
JPS63309612A (ja) 1988-12-16
DE3864912D1 (de) 1991-10-24
JPH0433886B2 (de) 1992-06-04

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